In troubleshooting some ConfigMgr 2012 R2 web service point configuration problems in my home environment, I was having real problems trying to locate the install status of IIS6 Metabase and Compatibility components within the Server Manager GUI. Ultimately I turned to PowerShell to get the answer I needed.
Import-Module servermanager Get-WindowsFeature -Name *metabase* Get-WindowsFeature -Name *compat*
(in fact, I’m still trying to find this information in the GUI for server manager! thank you PowerShell!!)